Winder



March 6, 1928.

H. D. COLMAN WINDER 3 Sheets-Sheet 1 Original Filed Sept. 15, 1919lnuenmt' HOWARD D. COLMAN 4 id zmzzfi March 6, 1928.

H. D. COLMAN WINDER Original Filed Sept. 15, 1919 s Sheets-Sheet Z Flq-3 DIRECTION 0 TRAVEL PLAN VIEW Inventor HOWARD D. COLMAN 6'05 gf zf Atw.

March 6, 1928.

H. D. COLMAN WINDER Original Filed Sept. 15, 1919 3 Sheets-Sheet 3Inventor HOWARD D. COLMAN l m .TL a all I ml MN? l m Fig. 5 FFIONTELEVATION Z0z 7rz653c5 Patented Mar. 6, 1928.

UNITED STATES PATENT OFFICE.

HOWARD I). COL'MAN, OF ROCKFORD, ILLINOIS, ASSIGNOR, BY MESNEASSIGNMENTS, T EDGAR S. NETHERCUT, OF EVANSTON, ILLINOIS.

WINDER.

Application filed September 15, 1919, Serial No. 323,839. Renewed June18, 1828.

This invention relates to improvements in mechanism for finding the endof the yarn or thread upon a yarn-mass and for carrying the found threadto the desired point. The

e invention has special although not exclusive reference to automaticwinders of the type shown in Patent No. 1,267,977, dated May 28, 1918. Aparticular object of the invention is to increase the certainty withwhich the found thread is caught by theelement that carries the threadto the knotter, and to dispose with certainty of any c011 of yarn thatmay be picked up by the end-finding means.

In the accompanying drawings, Flg. 1 is a fragmental vertical sectionalView of a mechanism embodying the features of this invention, the viewbeing taken approximately in the plane'of dotted line 1-1 of Fig. 5.Fig. 2 illustrates a stage in the operationof the mechanism for severinga displaced coil or loop of yarn. Fig. 3 is a 'fragmental plan view.Fig. 4 is an enlarged plan View of certain parts shown in Fig. 3. Fig. 4is a section on line a of Fig. 4. Fig. 5 is a fragmental frontelevation. Figs. 6, 7 and 8 are sectional views taken on lines 6, 7 and8, respectively, of Fig. 1.

The invention as herein shown is embodied in a machine that is generallysimilar to the one disclosed in Patent No. 1,267,977, hereinbeforementioned, but it will be understood that the invention is not limitedto the form and arrangement of mechanisms herein illustrated. w

The present drawings represent only so much of the machine as isnecessary to an understanding of the invention. Reference may be had tothe before-mentioned patent for an understanding of the relation of theparts shown in the drawings to the other mechanisms of the winder, thereference characters used in said patent being employcd herein, as faras practicable.

The machine comprises mechanism for unwinding yarn from bobbins (notshown) onto tubular cores b (Fig. 2) to form cheeses or cross-wound yarnmasses 0, and a mechanism arranged to travel along the winding mechanismand tie the ends of the yarn on reserve bobbins to the ends of the yarnon the cheeses and perform various other operaliens attending theproduction of cheeses. The winder consists of an elongated frameworkwhich may be similar to that shown in Patent No. 1,175,710 dated March14, 1916, and providing two parallel sides, each side having means forsupporting bobbins and means for supporting and rotating cheeses. Thewinder-tending mechanism travels around the winder and ties the end ofthe yarn on a reserve bobbin to every cheese except in the case ofcheeses that have reached the desired size. The winder may be consideredas consisting of a plurality of units. Each unit comprises a cheese-suporting arm 30 which is provided at one si e of its free end with apivotally supported hub 30. The core 6 is releasably held on the hub 30by any suitable means, as, for

example, that shown in the Colman Patent No. 1,236,822, dated August 14,1917. Said patent discloses a spool 12 to receive wild yarn, said spoolbeing herein indicated at d.

The carriage or framework of the windertending mechanism is indicated at89. In said framework is supported a vertical shaft 223 (Fig. 5) throughwhich power is communicated from a suitable source to the mechanisms towhich the present invention relates.

Exhaust air currents are employed for finding the thread ends'upon thecheeses, for holding the thread at various points and for carrying ofiwaste portions of the thread. The air currents may be created by anexhauster (not shown) connected to a tube 242.

The means for finding the thread ends upon the cheeses includes a roll278 on which the cheese rests and whereby the cheese is revolved in thedirection to unwind yarn from the cheese. At the rear end of the roll278 is located a suction tube 291 which is movably connected with thetube 242.

While the movable connection may be of any suitable character, thatherein shown comprises pivots 600 (Fig. 8) projecting from oppositesides of the suction tube 291 near one end of the latter, the pivots 600being mounted in bearings 601 in the framework 89. The end of thesuction tube 291 adj acent to the pivots 600 is formed upon the arc of acircle concentric with said pivots, thus producing a convex surface 602that fits within a concave surface 603 on the lower end of the tube 242.604 (Fig. 8) is a packing carried by the convex portion 602 of thesuction tube, and serving to prevent the cheese to the suction tube.

leakage of air through the joint between the tubes 242 and 291.

The free end of the suction tube 291 is turned upwardly, and the month290 of said tube is located adjacent to the rear ad of the roll 278. Asthe winder-tending mechanism progresses the mouth 290 arrives under thecheese. As the latter is being revolved by the roll 278 the free end ofthe yarn on the cheese is drawn into the mouth 290.

If there be a loose coil of yarn on the periphery of the cheese, it willsometimes appen that the suction current picks up the exhausted threadat such a point that the exhausted thread is drawn through said coilbefore entering the suction tube. In such a case, as the winder-tendingmechanism advances, the coil is pulled laterally off the periphery ofthe cheese and onto the core I) or the spool 11. In the rotation of thecheese, this coil lengthens and is drawn into the suction tube, thusproducing a loop e extending around the core I; or the spool d, and astrand f extending from the periphery of In order to get rid of the loope I provide a shear consisting of a stationary blade 605 and a movableblade 606. 606 is a stationary lug underlying the shear blades andserving to.

prevent a thread from getting too far into the space between saidblades. The shear blades 605 and 606 are located in a horizontal lane,and extend close to the periphery of t e cheese. When the suction tube291 is in its upper position, the mouth 290 hes inwardly of the ends ofthe shear blades and in the plane of said blades, as shown in Fig. 1. Itwill be apparent that with the mouth 290 in this position, no portion ofthe 100 0 extends between the shear blades. In or er to draw the loop adownward and thus carry one strand of the loop between the shear blades,the suction tube 291 is pivotally supported, as hereinbefore stated. Themeans for swinging the suction tube comprises an arm or bracket 607(Figs. 5 and 8) which is rigid with said tube and carries a roller stud608 that runs within a cam groove 609 formed in a disk 300. Said disk isfixed upon a shaft 265 which is driven fil'iom th)e shaft 223 throughbevel gears 266 T e means for actuating the shear is as follows: Theshear blade 606 is connected to a bell-crank lever 610 which is pivotedto the framework at 611. Attached to the bellcrank lever 610 is a stud612 (Fig. 6) that lies within a slot 613 formed in an arm 614. The arm614 is fixed to a vertical rock shaft 615 (Figs. 3 and 5) mounted inbearings in the carriage 89. Rigid with the lower end of the shaft 615is a crank arm 616 that engages a cam groove 617 in a disk 618 fixed tothe shaft 223.

Before the roll 278 has passed completely out from under the cheese,another roll 301 passes under the cheese, the rolls 278 and 301revolving in the same direction, and their upper sides being in the samehorizontal plane. The rolls 278 and 301 are in approximate alineinent,and the mouth of the suction tube 291 is located in the space betweenthem. The shear blades project into said space.

The means for carrying to the knot-tying mechanism the thread that hasbeen picked up by the suction tube 291 comprises an arm 316 fixed to oneend of a rock shaft 317. The arm 316 is arranged to swing in a space 323provided at the rear side of the suction tube 291. On the free end ofthe arm 316 is a head 324 (Fig. 4) having a hook 325 to engage theportion of the thread extending from the suction mouth 290 to theperiphery of the cheese (the strand f). As shown in Fig. 4, the head 324is at one side of the arm 316, and in its travel it passes above themonth 290 when the latter is in its lower position; or, in other words,the path of movement of the head 324 intersects the path of movement ofthe mouth 290. Hence when the suction tube is down, the strand f extendsacross the path of movement of the head 324. Said head has an inclinedsurface 325 adapted to force the thread aside as the arm 316 swings intoits upper position, the thread snapping into the hook 325 as the armcompletes its upward swing. The downward movement of the suction tubelengthens the strand f and draws it away from the cheese and otheradjacent parts, thereby rendering possible the use of a relatively largehook 325 and a relatively long surface 325 which will certainly engagethe strand 7 even if the latter be jumping about, and will guide thethread to the hook 325.

A cover or guard plate 619 is located in the horizontal plane of theupper portion of the rolls 278 and 301. This plate extends relativelyclose to the suction mouth 290 when the latter is in its elevatedposition (see Figs. 3 and 4). A notch 620 is formed in the plate 619rearwardly of the suction tube, the term rearwardly being here used inreference to the direction of travel of the winder-tending mechanism.This notch extends toward the winding mcchanism, or in other words, inthe direction from which the strand is being unwound from the peripheryof the cheese] A finger 621 on the plate 619 extends into the spacebetween the rolls 278 and 301, and has in its edge a notch 622. As thewinder-tending mechanism passes along beneath the cheese, the strand fis drawn into contact with the edge of the finger 621 between thenotches 620 and 622. The hook 325 of the arm 316 catches the portion ofthe strand f extending between the lowered suction tube and the finger621. In order that the strand f shall not escape from the finger 621before said strand is taken by the hook 325, there is provided on theshear blade 605 a lug 623 that extends beneath said finger, the lug 623being sufiiciently far below the finger 621 to form a tortuous passage624 (Fig. 4) through which the strand will slip when the arm 316 swingsdownwardly.

The structure at one side of the space 323 through which the arm 316moves has a groove 326 (Fig. l) which is concentric with the axis ofrotation of the arm 316, the point of the hook 325 traveling throughsaid groove. As the arm 316 swings downwardly it carries a bight of thestrand 7 to the knottying mechanism (not shown), slack being furnishedby the unwinding of the cheese due to the rotation of the roll 301. Ifdesired, the peripheral speed of said roll may be greater than that ofthe roll 278, and it should be such that the cheese furnishes all of thethread for the loop or bight produced in the downward movement of thearm 316, 'no thread being drawn from the suction tube 291. As the arm316 swings downwardly it carries one strand of the bight into a hook 327which is fixed to the frame-work. One side of the space 323 is boundedby a guide bar 406. As the winding-tending mechanism progresses, thestrand extending from the hook 325 up to the cheese passes through anarrow space 625 (Fig. 3) extending parallel with the direction oftravel of the winding-tending mechanism, one side of which space isdefined by a bar 408.

As the arm 316 completes its downward movement, the cheese passes intoposition above a slack-take-up roll 391 (Fig. 3) which revolves in thedirection opposite to the direction of rotation of the rolls 27 8 and301. By the time the found thread has been tied to the reserve thread,the roll 391 has caused the cheese to reverse its direction of rotationand thereby take up slack in the united threads. To prevent the unitedthreads from jumping forwardly (referring to the direction of travel ofthe winder-tending mechanism) out of the space 625, I provide near theforward end of said space a g ard lug 626 on the bar 408, said lughaving an inclined forward side and extending across the vertical planeof the inner side of the space 625.

The operation is as follows: The winder units a re operated upon by thewinder-tending mechanism in regular succession. When the roll 2T8 comesinto position beneath a given cheese, said roll rotates the cheese inthe direction to unwind thread from the cheese. As the carriagecontinues to advance the mouth oropening 290 of the suction tube 291passes beneath the reversely-rotating cheese. In the further advance ofthe traveling carriage the cheese is rotated in the unwinding directionby the roll 301; hence,

during the entire passage of the suction opening 290 beneath the cheesethe latter is r0 tated to unwind thread. The conjoint action of theunwinding rolls 278 and 301 and the suction current is to pick off fromthe yarn mass the end portion of the exhausted thread. Sometimes thesuction current will draw the thread through a loose coil on theperiphery of the cheese, in which event the continuing travel of thewinder-tending mechanism will cause the coil to be pulled completes itsupward swing, the inclined edge 325 (Fig; 4) pushing the strand f aside,and said strand springing into the hook 325. Thereupon the arm 316swings downwardly, the strand 7 being drawn out into a loop as theconjoint result of the continued backward rotation of the cheese and thedownward swing. of the arm. Soon after the arm 316 has started downward,the sheer blade 606 is operated to sever the loop e, whereupon thesuction current draws the thread forn'iing said loop into the suctiontube. Said tube then returns to its upper position.

After the tying has been completed the advance of the winder-tendingmechanism brings the rotating roll 391 beneath the cheese. This rollrotates in the direction to wind the thread upon the cheese, therebytaking up the slack in the united threads between the cheese and thebobbin.

I claim as my invention: 3

1. The combination of a roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube movable to carry the open endthereof toward and away from the line of tangency of said roll andthread mass a linger extending between said roll and said suction tube,said finger being notched for the reception of the thread unwound fromthe thread mass, a shear blade stationarily located adjacent to saidline of tangency, a lug on said blade extending beneath said fin ger butspaced therefrom, a coacting movable shear blade, means for swinging thesuction tube toward and away from said line of tangency, an arm pivotedto swing in a plane parallel with the lanes of moven'ient of said rolland said suction tube, and a head at one side of the free end of saidarm, the path of said head intersecting the path ofpivotal movement ofthe open end of The said suction tube, said head having a hook and aninclined edge arranged to engage the unwound thread and guide it intosaid hook.

2. The combination of a roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube movable to carry the open endthereof toward and away from the line of tangency of said roll andthread mass, a. finger extending between said roll and said suctiontube, a shear blade stationarily located adjacent to said line oftangency, a lug on said blade extending beneath said finger but spacedtherefrom, a coacting movable shear blade, means for swinging thesuction tube toward and away from said line of tangency, an arm pivotedto swing in a plane parallel with the planes of movement of said rolland said suction tube, and a head at one side of the free end of saidarm, said head having a hook and an inclined edge arranged to engage theunwound thread and guide it into said hook.

3. The combination of a roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube movable toward and away fromthe line of tangency of said roll and thread mass, a shear bladestationarily located adjacent to said line of tangency, a coactingmovable shear blade, means for swinging the suction tube toward and awayfrom said line of tangency, and a hooked member movable to and frobetween said roll and said suction tube, said member having. an inclinededge arranged to engage the unwound thread and guide it into the hook.

4. The combination ofa roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube arranged to act upon thethread mass near the line of tangency of said roll and thread mass, afinger extendin between said roll and said suction tube, a s ear bladestationarily located adjacent to said line of tangency, a coactingmovable shear blade, an arm pivoted to swing in a lane parallel with theplane of movement 0 said roll, and a head at one side of the free end ofsaid arm, said head having a hook and an inclined edge arranged toengage the unwound thread and guide it into said hook.

5. The combination of a roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube movable to carry the open endthereof toward and away from the line of tangency of said roll andthread mass, :1 finger extending between said roll and said suctiontube, a shear blade stationarily located adjacent to said line oftangency, 9.

lug on said blade extending beneath said finger but spaced therefrom, acoacting movable shear blade, means for swinging the suction tube towardand away from said line of tangency, and a thread-taking member having ahook and an inclined edge arranged to engage the unwound thread andguide it into said hook.

6. The combination of a roll arranged for peripheral contact with athread mass for rotating the thread mass in the direction to unwindthread therefrom, means to exert suction upon the eriphery of the threadmass at the line of tangency of the thread mass and the roll, saidsuction means being movable toward and away from said line of tangency,and a thread-severing device located outside of the suction means, closeto said line of tangency and at the side of said suction means oppositeto the side from which the thread being unwound approaches said suctionmeans.

7. The combination of a roll arranged to engage the periphery of athread mass for rotating said thread mass in the direction to unwindthread therefrom, and a suction tube movable toward and away from theline of tangency of the roll and the thread mass.

8. The combination of a roll arranged to engage the eriphery of a threadmass to rotate the t read mass in the direction to unwind threadtherefrom, a pivotally supported suction tube, and means for pivotallymoving said tube away from the periphery of the thread mass.

9. The combination of means for rotating a thread mass in the directionto unwind thread therefrom, a thread shear, located close to said means,and a suction tube movable approximately radially toward and away fromthe periphery of the thread mass to carry one side of a loop of threadinto the shear and thus release the loop from said thread mass.

10. The combination of means for rotating a thread mass in the directionto unwind thread therefrom, a thread-severing device located close tothe periphery of the thread mass, and a suction tube movable away fromthe periphery of the thread mass to carry a thread into the severingdevice.

11. The combination of a suction tube, means for causing relativerotation of a. thread mass and said suction tube, a thread severerlocated close to the periphery of the thread mass, and means for causingrelative separating movement of the tube and the thread massapproximately radially of the thread mass to carry into said severer oneside of a loop of thread picked u from the thread mass by said tube andt us release the loop from said thread mass.

12. The combination of a roll arranged for peripheral contact with theeriphery of a thread mass for rotating tiib thread mass in the directionto unwind thread therefrom, a suction tube movable toward and away fromthe line of tangency of said roll and thread mass, thread-severing meanslocated adjacent to said line of tangcncy, means for swinging thesuction tube toward and away from said line of tangency, and a hookedmember movable to and fro between said roll and. said'suction tube, saidmember having an inclined edge arranged to engage the unwound thread andguide it into the hook.

13. The combination of a roll arranged for peripheral contact with theperiphery of a thread mass for rotating the thread mass in the directionto unwind thread therefrom, a suction tube arranged to act upon thethread mass near the line of tangency of said roll and thread mass, ashear blade stationarily located adjacent to said line of tangency, acoacting movable shear blade, a reciprocatory thread-taking membermovable in a plane parallel with the plane of movement of said roll, anda head on said member, said head having a hook and an inclined edgearranged to engage the unwound thread and guide it into said hook.

14. A textile machine having, in combination, a movable suction tube, anarm pivoted to swing in a plane parallel with the plane of movement ofsaid suction tube, and a head at one side of the free end of said arm,the path of said head intersecting the path of movement of the open endof said suction tube, said head having a hook and an inclined edgearranged to engage the unwound thread and guide it into said hook.

15. The combination of means for rotating a thread mass in the directionto unwind thread therefrom, a thread severer, and a suction tube movabletoward and away from the periphery of the thread mass to carry a threadwithin reach of the severer.

16. The combination of means for rotating a thread mass in the directionto unwind thread therefrom, a movable thread-taking hook, and a suctiontube movable to carry a thread of the thread mass into the path of saidhook.-

17. The combination of a suction tube, means for causing relativerotation of a thread mass and said suction tube to enable the tube topick up a strand of the thread mass, means for causing relativeseparating movement of the tube and the thread mass approximatelyradially of the thread mass to draw the strand away from the threadmass, and a hook to take said strand, said hook being movable throughthe space between the tube and the thread mass.

I 18 The combination of two rolls arranged in approximate alinement andspaced apart and arranged to drive, in unwinding direction, a threadmass resting upon the upper portion of said rolls, a suction tube themouth of which is located in the space between said rolls, means formoving said tube to carry the mouth thereof up and down in said space, athread severer located in position to receive and sever one strand of aloop drawn down from the thread mass by said suction tube in thedownward movement of the latter, and a hook arranged to swing in thespace between said mouth and one of said rolls to engage a strandextending vfrom the thread mass to said mouth.

19. The combination of two rolls arranged in approximate alinement andspaced apart and arranged to drive, in unwinding direction, a threadmass resting upon the upper portion of said rolls, a suction tube themouth of which is located in the space between said rolls, means formoving said tube to carry the mouth thereof up and down in said space,astationary shear blade projecting into the space between said rolls andlocated in position to be engaged by a thread drawn down from the threadmass by said suction tube in the downward movement of the latter, and acoacting shear blade to sever said thread. a

20. The combination of two rolls arranged in approximate alinement andspaced apart and arranged to drive, in unwinding direction, a threadmass resting upon the upper portion of said rolls, a suction tube themouth of which islocated in the space between said rolls, means formoving said tube to carry the mouth thereof up and down in said space,and a thread severer located in position to sever a thread drawn downfrom the thread mass by said suction tube in the downward movement ofthe latter.

In testimony whereof, I have hereunto set my hand.

HOWARD D. COLMAN.

